NT内核记录器会话日志未创建

我正在尝试编译我从Microsoft网站之一获得的以下代码（原始）：

#include "stdafx.h"
#define INITGUID  // Include this #define to use SystemTraceControlGuid in Evntrace.h.
#include <windows.h>
#include <stdio.h>
#include <conio.h>
#include <strsafe.h>
#include <wmistr.h>
#include <evntrace.h>
#define LOGFILE_PATH L"C:Documents and SettingsAdministratorMy DocumentsMy DropboxLog.etl"
void wmain(void)
{
    ULONG status = ERROR_SUCCESS;
    TRACEHANDLE SessionHandle = 0;
    EVENT_TRACE_PROPERTIES* pSessionProperties = NULL;
    ULONG BufferSize = 0;
    // Allocate memory for the session properties. The memory must
    // be large enough to include the log file name and session name,
    // which get appended to the end of the session properties structure.
    BufferSize = sizeof(EVENT_TRACE_PROPERTIES) + sizeof(LOGFILE_PATH) + sizeof(KERNEL_LOGGER_NAME);
    pSessionProperties = (EVENT_TRACE_PROPERTIES*) malloc(BufferSize);    
    if (NULL == pSessionProperties)
    {
        wprintf(L"Unable to allocate %d bytes for properties structure.n", BufferSize);
        goto cleanup;
    }
    // Set the session properties. You only append the log file name
    // to the properties structure; the StartTrace function appends
    // the session name for you.
    ZeroMemory(pSessionProperties, BufferSize);
    pSessionProperties->Wnode.BufferSize = BufferSize;
    pSessionProperties->Wnode.Flags = WNODE_FLAG_TRACED_GUID;
    pSessionProperties->Wnode.ClientContext = 1; //QPC clock resolution
    pSessionProperties->Wnode.Guid = SystemTraceControlGuid; 
    pSessionProperties->EnableFlags = EVENT_TRACE_FLAG_NETWORK_TCPIP;
    pSessionProperties->LogFileMode = EVENT_TRACE_FILE_MODE_CIRCULAR;
    pSessionProperties->MaximumFileSize = 5;  // 5 MB
    pSessionProperties->LoggerNameOffset = sizeof(EVENT_TRACE_PROPERTIES);
    pSessionProperties->LogFileNameOffset = sizeof(EVENT_TRACE_PROPERTIES) + sizeof(KERNEL_LOGGER_NAME); 
    StringCbCopy((LPWSTR)((char*)pSessionProperties + pSessionProperties->LogFileNameOffset), sizeof(LOGFILE_PATH), LOGFILE_PATH);
    // Create the trace session.
    status = StartTrace((PTRACEHANDLE)&SessionHandle, KERNEL_LOGGER_NAME, pSessionProperties);
    if (ERROR_SUCCESS != status)
    {
        if (ERROR_ALREADY_EXISTS == status)
        {
            wprintf(L"The NT Kernel Logger session is already in use.n");
        }
        else
        {
            wprintf(L"EnableTrace() failed with %lun", status);
            getchar();
        }
        goto cleanup;
    }
    wprintf(L"Press any key to end trace session ");
    _getch();
cleanup:
    if (SessionHandle)
    {
        status = ControlTrace(SessionHandle, KERNEL_LOGGER_NAME, pSessionProperties, EVENT_TRACE_CONTROL_STOP);
        if (ERROR_SUCCESS != status)
        {
            wprintf(L"ControlTrace(stop) failed with %lun", status);
        }
    }
    if (pSessionProperties)
        free(pSessionProperties);
}

该程序似乎成功运行，但是日志文件从未创建。有人知道问题是什么吗？我正在使用Windows XP。